{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x9199389b153043800755cbf91bdc7944f5dece5671257c1f9c03c7e23a83e8d3",
    "signature": "0xfcf273594b06ef1606424f15d60b0fe6d3d6f3f29704680f2391bf31e7cccca97b2bb7661880fe25c568b6b9bca04e3012ef4fb2cde75f762e21dca0918cec8c1c",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}