{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494935131",
    "entityType": "User",
    "nonce": "0x3f1c103a2385d7dea5d9b46ced326464b9155fcd4a529852d12aa28a11d88e77",
    "signature": "0x6e6b7ab99f655260ec3a19f0cf215ad0853c246ad72d851995d87c67426a9a2655513dad78673f792934276387fd5c1e629ec263f0ae7525b47886ada31ed3ec1b",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}