{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1315631",
    "entityType": "User",
    "nonce": "0x7d712dbdc068f3b9c0f2809def690b4134edc030259e1bfa75be0095c86dc9b4",
    "signature": "0xbe7ed8fe63da6df86067a9594ae08d1803c8e611ab91a262495c1978cd2c7c9850988d02af2d9d8dc7b71d159098ab9704f0bb286403d183fb8db05b8fbdd5c61c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}