{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0xafbf82a71a899e34cc668961a0e71e06194919b09dc8b9a1d32006c993ce3804",
    "signature": "0xabf69dc9c68d260d4bb98e852d76c5d5894b1e00afdf73dd08651056467f054b3ca6ee190e457f8b3789c3fef4b799c10afae04c489bfded17f2577b4168efb31b",
    "signer": "0x367680E9B4EfE77a6636091FA6c2c71749Cf7C60",
    "userId": "40274"
  }
}