{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x0d93c50bc4aeaac87ac19c281cd6ee3453fde5aed4fef388c5e61cd2b4230b6e",
    "signature": "0xd6d92ee2eeed33a314434e3f8d015b7b749254839072c2b5abe580913c3960184cb0449c5812826e9ff24b6a6a97537f712f6f54854785a598ef1064739a195f1b",
    "signer": "0x3dCA4F786a1e64C4c6ea46dbB67Aa793bA7Db05D",
    "userId": "19387738"
  }
}