{
  "manageEntity": {
    "action": "Update",
    "entityId": "418312750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf7f7d8eec278392ce66f69616793e86e2c06ae338d1b2282e1e2eac0270caa6e",
    "signature": "0x14e15f5da62a7deefc15d2c8317aee994e87caba324b7aff428530e9fad423e139e101fa9ff0c52f2784d724d11d55aa796ad2b21768d6f9bdb5272b2fbcd6471b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}