{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a894d39bdb8f67efec728bf21c9a76ae27b03f72f24e75537df247f305f1aa9",
    "signature": "0xde6741eaaf2e7accac768dfb62d8bfacf95227bc08ab7b41ac09010644d69cec311ad5a82202282f6c11f332b5e0dca9fe399ea43cbfe453575abd2edb4d28691b",
    "signer": "0xd6078B0551D517b9e62F8575E0209CaC9a0F733C",
    "userId": "326305486"
  }
}