{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337227",
    "entityType": "User",
    "nonce": "0xbb7003d35e196380c02793d56e8d9e52d6ab15837809c8cfdd07f564ddab86c1",
    "signature": "0x3779d634a5f4043eb93b66513606bf2be279a765a3f556174300126e6d3072aa692584e38c25631ff33482acd453d60b84efed7d923ce7ad4f8b8473401185951b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}