{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb1fa8646940e1589b2489cfbeec4832041ec17278fea2f728c6143ff8b7df5ec",
    "signature": "0x3976843310a8b4a3ee0e27c2c0169b2fbc399091239ae6328dc57565a111cef20ea1f0ea21dcac576711f93bbbb9557d75d2dc061df320b6e1769be8bf3b00351c",
    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
    "userId": "407046354"
  }
}