{
  "manageEntity": {
    "action": "Update",
    "entityId": "880666384",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x23cdec1b457ef5dcde382ee15817af4f04d18d5ba7956d3db15d3100c89ea38f",
    "signature": "0x7082786dec79c489b11c01ab037b088f052e49350472cabe098c26aff9739bf54a865bee2c8a88e1df6c9ebe3c21ad4b9b75b37176296cd37f1fa15be69dd3881c",
    "signer": "0xA4cCa4BD1bC397f89bB799Cf867FDe2e7f025B6a",
    "userId": "880666384"
  }
}