{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148569",
    "entityType": "User",
    "nonce": "0xcab71bcfb7ad961e3a104080eb5646edb39b3a1a68ae9345f4ef3aadc48a9954",
    "signature": "0x1c9a646c9243137b681f0920391071cef437a9a507883c4c35ab8ca06e4f9dec252b3e300e754bf480d9a70d4182d4dbb9cf30068124cbcb77fd10dfafaf61251b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}