{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xe779d6d842e1863de9294bab038d19888a7a29e2846a681f71ad18f131535096",
    "signature": "0xc1d9bc72047710ee50ea4bf0307211a9f6c3aaae148c0da69e9d2b87902f3da646f9340ab4d13ef2684d533ddc38cb0bdca6a8447320553fb243a8b3b01b43de1c",
    "signer": "0xCE1807CbF44d0BF3961D9A4B757dA508604b77E6",
    "userId": "157032641"
  }
}