{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "782362",
    "entityType": "User",
    "nonce": "0x00c34bf9e4791e90f121ff9c47abad5749bab41deb56de1f20bddd7a868aa6d7",
    "signature": "0x43ac89048e95d72e294be8eef2a12bf4d7d7f85f8250838e0d08c4217fa447186940507891217d8a9c2c137aa6bc7a3b4310db23cf0045c196811b279d68ff711c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}