{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4185",
    "entityType": "User",
    "nonce": "0xf09e3a4ef1a0e4ce3c47eae7e2b1ef5188df255d998a2364570717c7a3db1ecc",
    "signature": "0x01813f2253ff8d5fb379debe73ec6b7f6f8edd961241856333d99f6db23fed586c29c1ce76eb3a109a1ef25f20d2a89f5c11f8b0182aab02d28e70b0361c00ec1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}