{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128172",
    "entityType": "User",
    "nonce": "0x50d0e652e959a9eb6de2e9c864f1e2db2a943a60dcbb120d5c68a1c06f502d0f",
    "signature": "0x8aca4fd2525c57e49e9f6b01084f7927a952c772f3bb64172a1e4195b2831a7d01072e2b8da8249149a5c78ad1feb80b8cafa6b4539228deac5553ab0441b84b1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}