{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227414706",
    "entityType": "User",
    "nonce": "0xe95b6096ff1c6be81700667260a6ed14c3a043548942ce173ff429237532284c",
    "signature": "0xcd8face32b42d6ebbccd1c929314049592db3a85e0ead1d7cd31680b6c2e8d0e5a9a514ebaf2ef92a189df6ea6bf4ab2a8290a45a482e25aef598655572106301c",
    "signer": "0x64B0DA55A684D51d3EF114Fe644eac7db132fDb7",
    "userId": "121304325"
  }
}