{
  "manageEntity": {
    "action": "Update",
    "entityId": "74175991",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x22d193793d32a5600589a6cad9877d700f90264d26fecc852ccda7d6596b9a2a",
    "signature": "0x0acb233982736dadc20af1524e7b3e060f115110edca67026b813b95036947d11242db5292ae83671ef4dfd304a88f559f6823475f93212edab9a8f2e4a34ab51b",
    "signer": "0xFdb7279D6dE5a1b217493Fae5a3d919aACE56C71",
    "userId": "74175991"
  }
}