{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145470",
    "entityType": "User",
    "nonce": "0x8281720dd4d9800eafe72f47f08d11c5c9383bea595d37cdb6d0ad7cb14909e1",
    "signature": "0x3f1811ba627de7bda1f965ad671f4ada4fa9a45acf2ce2156a04e1fa92ae51a161906182f13c6c0e6537b17e890a93386d865b6d0d433e9876371d90579e28721c",
    "signer": "0x0a8144ECcF9C2FCa51752b2ab83825956CFa652A",
    "userId": "344204229"
  }
}