{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "895857014",
    "entityType": "User",
    "nonce": "0xcf974eb3a395c67eeb195044c6a4af11eefcd3a328dbb32c471a34b2065a1dc7",
    "signature": "0x6ad4ae6b0c901079b3f227ba0a2628955b87ad9e5e2540a47ce368c488b4a6ce55d9b5f2cc5b300c49c207133af41a2ab7586bc4da8e1e43d88db7dd50305e431c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}