{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475396",
    "entityType": "User",
    "nonce": "0x79b679e369ece1977bb1147d6b4b72719620be976345dae5e04110fd4c2e23a3",
    "signature": "0xbe8dd9f83b9fc6a9ebbda02c4f0b346dcf36f0513cef14fc1482e91499533a30471a663cc832a33742875fe1b0616948b8ffa226abde803a2815618b9e76e4291c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}