{
  "manageEntity": {
    "action": "Update",
    "entityId": "450615362",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2cikdd62fb4t6z3edssjjk4fbciptmuko7fp3olz34qe3da46qgq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":577892560}]}}}",
    "nonce": "0xda1eaea5aaae4daa3aa0bc900068aec4991760d0a9ec00e12be849a779f07e90",
    "signature": "0x23dc4a2ac2c3ed522a8e15b9b6e7103081369d18f610e6955f2824d9decd0d1d16f14668119227eb2a0fe83afdbabfa3a69ef67dd7a6e0ecc22bbef94da9cd011c",
    "signer": "0x84dc3FcE242E8531F4B00Abc3aA0Bee27EC70e68",
    "userId": "450615362"
  }
}