{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "847622374",
    "entityType": "User",
    "nonce": "0xa9b40c9f471073b647b962df42c5844c8ac3bc8430a20d02ff0f17d4dff13e5a",
    "signature": "0xc4a07bb6264ff9ea6c8a93c75fe1af3b849f3de0ef9df6e05f5aa85765ba95483f8af22cec12517d437af77aed5bcf472a3ac675cd1050a3540c88d3b3c8dacb1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}