{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "308502",
    "entityType": "User",
    "nonce": "0xed0f64fbff1a13903db4bbbe6bef0cb0c5da68ca49bc218367170bb6b2d8a4f6",
    "signature": "0xfca5ad2727ba0e13d3cca793723b7ba81f91e8d1f2614481c20b114abd2502e0441487ce1e22dd9dc2c24fe5d3869088fadb3f51d4734a49da7cc46a0c1c08ed1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}