{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335878078",
    "entityType": "User",
    "nonce": "0x13d440b792249e5340889cb5c25038f4db70440c04cece58b67698db4b58ba5e",
    "signature": "0x05e0ad519c8dd29f2642ea8982234828f3cec75dcd2f3694695e8ea6ac4937f644d76e3c48cc468f71afd76422ed26b9cb062d42f0273ed7acc07130b80b55301c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}