{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78148",
    "entityType": "User",
    "nonce": "0xad4c3906e155f374a8b6bb545ee9a804da4f5d06a835fa9eabdcdb19b4821d6e",
    "signature": "0xad531238562210c7bc8c301ac296960abdd1abce53b8b5bf7aea155fb14e75ff5aa81f93a3c104af8dec1847c4e78e0e67be5d7cfee5799932a1c60aa8f435841b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}