{
  "manageEntity": {
    "action": "Update",
    "entityId": "496925868",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5ca6b00a13177c612b1c4b6983a9d55b71a16225e2651e562645f1d1f3a88505",
    "signature": "0xf92679913a5ae18a5a8eec08ed945fa43b7a7238519553691ccdbfce35f39b3464ae33a498d8133ff3e3b4be7f5f57ea62670cad9d293aaba4734a371f613b381b",
    "signer": "0x0122Edf0b170378764A2498d19389f3396D9262b",
    "userId": "496925868"
  }
}