{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1881555",
    "entityType": "User",
    "nonce": "0x3394435b8a2cb89dd9ac1120bf5b76941275ab60acf599a6e3eb5037464f7c39",
    "signature": "0x872c0db6248a5afbbf94681088c3efadbc2c1a1f0223fa153f70c549a74f4e10602889e9dfc12b9b1c82a976332d4626418b922d4b2d35974154d0a8e08f5d821c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}