{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "545013503",
    "entityType": "User",
    "nonce": "0x27c6783d6497146d971775d485b6298ddb165ced0a29e52246b751a3399cd9fd",
    "signature": "0x2b83c5a662c9e6b02c4002155c23bcc030877a640c084c7df5e7f15d65cddd1c0c7050684f78702cb885db65e5b511d35391e880a1ab53b90ccc72fc9c05da331b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}