{
  "manageEntity": {
    "action": "Update",
    "entityId": "987732555",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8a877c796114049103ee6a4864c4aa91c8e788c31d32eaa7b101e4eb32eba3bc",
    "signature": "0x7dc420a66c3ec6c5d201e44c3f5d8aaf04d5c49da0ae83f6c164e378c47cf0e73c3e894aa71a4689e1b4d593d7a43288c918f34177e02e989489d5eac43c9f2e1c",
    "signer": "0xE66b0da662DC3EB7Af2524970E1EC826e75EbC81",
    "userId": "987732555"
  }
}