{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "628188510",
    "entityType": "User",
    "nonce": "0x34db9678789ecfa0d32215333fcd107a15092afb51389b1c673d84d2de4f90f0",
    "signature": "0x859d0b5779f3616109fe0012940955cfb30e642ecb909678df013ac286a639614293665c8b74b1499ece96882a235ba0a91e484a3485e00f476957f2846bc9711b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}