{
  "manageEntity": {
    "action": "Update",
    "entityId": "323426295",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqji5chbi5xfl6l3ffjcyoeed2ehn4kj77p73i2bmiovtcxm5ahqq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1116320869}]}}}",
    "nonce": "0xf0704497c0765aef3f3ca8609209b86545ed6624e07c9d584f27b1e23b4f4ad9",
    "signature": "0xbf3114329ac5a00bad19120d6af6d6331d511f16b167a044d80e2ff90b680ed11635b3c359bf000ea67d879a4795cdb66052103e931f4d36f2a5f1aa0767b55d1c",
    "signer": "0xb4d13032C460384cd2965fe5ce69B5d869207DfA",
    "userId": "323426295"
  }
}