{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "864400174",
    "entityType": "User",
    "nonce": "0x0b60bcedb8ef1b6bda7cc568845d2900e9fbb9230bbd3ab4b7a7e33cea7fc4e0",
    "signature": "0x7144b93beacb999442839a0b5259c5d02b8dc13428d84a9cb0c8ffe63b73d7476d7aeab4e6c71892db6a83082b6d7ca8003cec3a5f409c614a2cbf7ef71294961c",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}