{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xfd5ffae2e52c1afea30bc7a3ab8b59e6644f18a45d749c073d4688c5af6feb70",
    "signature": "0x623cf60021869db499a1fb86c266c3f0b695dc393337fddf3e298f352b7fbe0c4a2ece6a523055b9796dee50c87b72845e5158f3bb9b1bc4f90574b1aefb0b551c",
    "signer": "0x138211692b4e44fa8133FF53Da30AD345820524E",
    "userId": "904871299"
  }
}