{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x55d7e78948d312f61d3d4565e89480476540f572f50edcc90e3cea29de3f005b",
    "signature": "0xc292a47858ef1968434b33730c444a22972375d20f61e64184f9a4186fd54b1c19e7f71b5d2aa32792346b18da090d181f7be2340cb535d8954d0c55d21146a51c",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}