{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40651",
    "entityType": "User",
    "nonce": "0x6cf3ca718503b9c1f69450d578e38d416dc2d318a1f3cb3b139b0558e0251bba",
    "signature": "0xc8a2a41427666bd2a89865fd7cf294529f3302ef7673211d11d9c832f3aecc6d42467f7facf9c290bd060a09bf86a0c9f67b80dd1fa1636ab3e8d985fa31641a1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}