{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320009",
    "entityType": "User",
    "nonce": "0xa258f6fa8d243eccac2c037e43d85d8a08b2c06d9f443719ab10490ef174c3c1",
    "signature": "0x66e6a1cbd60f064caa03f102967f9151f384182a0fe4574bbe3db2de25c047042239bfc21761724bf172f87ffa2793b9968a65896164f773601f966f29a5c4d51b",
    "signer": "0xaCa7953CD273B28Ac40A1949c2f4E31562A30c91",
    "userId": "223927047"
  }
}