{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "892670088",
    "entityType": "User",
    "nonce": "0x9efdc0488433adb1bd3b0c3814f87eca684057d2d4dc36f6a712ea6dc7f6305c",
    "signature": "0xcebe5b932d9dc3eb2fc0cae64fda042ac79c8cec10a12696e7b73a01cbff14366af4d6ed28a9e3812fcd82eb44aae355484c86b2f12035854d00f82cbdfa5c251b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}