{
  "manageEntity": {
    "action": "Update",
    "entityId": "783037591",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb7eedc8ea09f23ebb03d7e30c1d446ac65365be3bb7843aafedaae46f7716881",
    "signature": "0x7f33d736530fd04a0c98859114b4bea4d85db92e0aa2f5b3965e59e5f22ff67b7e27868ebba3ee8d32d44918c56e90e1ef925be32a04fe1942a14de179c372ac1c",
    "signer": "0x159630f64804b735F085Fa8ef266e151477FFa5c",
    "userId": "783037591"
  }
}