{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "766293353",
    "entityType": "User",
    "nonce": "0xd844b785dad67aebbe2a9e31c321dc95665766f5e113427789887787ea4b1424",
    "signature": "0x607fcb6a38c4908844b578faa3bb724f7239e453cadaf19d6596748e2d6d7a753554a073890e3bcd59823eecbff2f0b963f353889c3f79dd474983c11cc32cf51c",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}