{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137516",
    "entityType": "User",
    "nonce": "0x8a174d7019052de4a04bbf0f0c360d1747e0d772fa0b19fef53efa9c652f863a",
    "signature": "0x220eea1056751c26b3aeb24e4dde1cbf451ff6d72312f91f6b7ebc877b1c3ae2556ef7f4abdabcb051e9f94c3e9370e5d1dbc77b170275036463c9c5a8a317f31b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}