{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111728084",
    "entityType": "User",
    "nonce": "0xeb9214f850e7f2b2f3bd7e23920b58b44ec4cc6807fb380060911f1950263583",
    "signature": "0x6005df83f04dbc38652820a0fde1b1ff7ca33c9fbbd6ad125fefbdc851babe5d1052fbf455d9787447f8f3ccf8ac14c655a9df50a5b0f63faeb1a1647e11f2e71b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}