{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67239",
    "entityType": "User",
    "nonce": "0x04f88ebb88a0a0e195b9f58a8ca318b13777e40e6599c3c6b5b14b907fcb4b7e",
    "signature": "0xf2d6c83846aec0827d5ca019f263f08f4112b406bb754c8d8346981f5c82986f0d8b3075477a9aa991b5425661b11d8184f82dc7ff9e1865e05dade410e89d211c",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}