{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64702",
    "entityType": "User",
    "nonce": "0xcf1b803c450cb20e7e510d0b7f9717c81b687536d439c275757e53b47dccbe59",
    "signature": "0xa5cf80874e02e5e7c7c804b1a71f51ddfc27935619307a9a82b7f8e0de1b4f804dbacb0be0b13eba5d9cd704e64b6d286c866f8f07d1c0987140016b3af324a31c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}