{
  "manageEntity": {
    "action": "Update",
    "entityId": "985546444",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xca9d702b7be74cd494df312ef152f0f0e67d526be5c0fbcfeca85b74170999bd",
    "signature": "0x31d2bc457f90856f7bed67b6022029f8adc7f21845f389d7eaad4bc6f868b8d42756a8f692228596109e48462ade7dc20a15a3510ff2af871a7eba3dfd9de2a81b",
    "signer": "0xAB6eE70d56A93cDF21a1ac81F2649F219A82e3c9",
    "userId": "985546444"
  }
}