{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1efa387ad450d5064e7235068164a924cda75cd64f89dbd95b06943a0fd45674",
    "signature": "0x5184b335b013da823a0d0673dd498b39183837dd1dc921a935b9f9a172f8867b0aaf05fc43df2d8c75c75cd69ce06a0010f6c427ef09466fb6e16791e7a96ea71b",
    "signer": "0x14D33c0e56287a84a68E500392B3625625369333",
    "userId": "49727432"
  }
}