{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "250636933",
    "entityType": "User",
    "nonce": "0x5b071e915e3e38ae5b545ed752eea01b1623329fa2d5db36c45fbc4b69207055",
    "signature": "0xa5edaadad7c339e13755654a7998527aabc170a2c62796f7096ba949d705b1f93c9f959fe4f218ce1cc9112210b32d49296aeaa7deeb2ac585450cfb0275ff091c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}