{
  "manageEntity": {
    "action": "Update",
    "entityId": "166428182",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierafamzbbjd2j3ftn5vpnlvh6imuoh4d7kbcjgzfch7723rlxikvqgq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2074369942},{\"type\":\"playlist\",\"playlist_id\":1802108437},{\"type\":\"playlist\",\"playlist_id\":1073048870}]}}}",
    "nonce": "0x432cb014296fbc71fb113ec70632f1b08f88eb8eb448cc0cd4f44d8bb3d8b608",
    "signature": "0xf90c4a071a92875938477025d378e2a0cf1980150825d45006d8d5f38e9724d700ff806ac6fc09dc17ac24917f73b57876fdad402d94796c55cff58e794bdd0a1c",
    "signer": "0x866CB73184a8420C302e3850B610761F882C4DDE",
    "userId": "166428182"
  }
}