{
  "manageEntity": {
    "action": "Update",
    "entityId": "903340761",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x13d4cdbbf599cd2bda307eec9bc1eb6598b414444b5a67c9dea9f9e4fc7c164e",
    "signature": "0xc3e42d5a095136d43ed93aa9a688779cb2c0315eeca70ed82888c94843907b62486c6816e3432f75a131a561b16244dd25037642aeda3116af2b3d1ac0f7fd281b",
    "signer": "0x1e98f68c39626Fd4ee303043937fFc9C934235d8",
    "userId": "903340761"
  }
}