{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "460631539",
    "entityType": "User",
    "nonce": "0xc9615fce8acea6d35a2f7ffe5e8b570599e44cddae00b7e3504e12759dd76f41",
    "signature": "0x042a5e58d6a7be5b35d29cd6795a32bd69edafba2f6a53e7ec1622de1dea159d11429b87a1aebbb78163b5d1ef412d4ea7b93a306f4814bc93de6c74e2fe99de1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}