{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "303195",
    "entityType": "User",
    "nonce": "0x53689c5859734565cbc94410fa980804c7e6eabd31aadb4c69f74bda6078b953",
    "signature": "0x155ed0a56e155ee5577195d3674ceaa17b07140357ab2b591d68c35b473de74a31823f7a63244bbc28ab8705a1dac615765a0832804814c2bb1237ce1de0e8f71b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}