{
  "manageEntity": {
    "action": "Update",
    "entityId": "188984382",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x439b83608c6c0c5d9a9edbd4ff0f38a7897acd3c47dcda5b16272348b005d0d9",
    "signature": "0x663d2c16b1a9f050194e3311cf548ad0051e5011f06f70e9406547a77e545e523e39b9cf5b59e6cf7a5cb21de2f62a42a83f7850140189b26c3185e7769635e61b",
    "signer": "0xBE565aA1453F803bEf51cB0CcBe4D0734175d33C",
    "userId": "188984382"
  }
}