{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "536740013",
    "entityType": "User",
    "nonce": "0xfcab741f899ec4fa3f204468aea1e060e429af45ed3b753d95c3d6908fc97fb5",
    "signature": "0x31dd2c26ed4c75faafb0c260f0210b1a30e2375bdf37559978bec61c2194f80849ee6561752f9e83b60a4d59d535151f895e9bebff90d725a506d59d3bbeff151b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}