{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99967687",
    "entityType": "User",
    "nonce": "0x15523ee90ef8cb466d220a458c3e411096bd4a7e202d5ec7d3be076fe27ab8c8",
    "signature": "0x7b2ace808ad6077fa60d7e90580f090f6ee6ce59cb853929c9aa8395eb55bd371d376e680ec635cfa3d13a164f3d13c6a94b69ec6a47651489c22e55fc3e986a1c",
    "signer": "0x8D4435Fd18F8E4D969FCB3b38e10372302841e44",
    "userId": "595763143"
  }
}