{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa5a3d54ebbd79b89963b39bbc4d9c39520ff4c47837c19ead23e9fdf28db5267",
    "signature": "0xa821c465f2455b69f6c2bc0e124f1a185cff632d98d9b3f743a6bf6ab7d02e6a1d26b49e4c60781c8587604d32b595745352eed17750cc582893f3175fe0f0b11c",
    "signer": "0x27D122951c1E664505873CFc671BD727764e8e9e",
    "userId": "313852477"
  }
}