{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4198",
    "entityType": "User",
    "nonce": "0x2fa659f17d02aa3b14b32edc2de6ddd6386751c3bfbe95cdbf7816d84df827b0",
    "signature": "0x8f3ddbaa36dd0601e93d3ce07743c4cad57aab2d299917ed835f5de90952d69705eec2a596579e92a7af75a33df5d4079a827130d6faa95d6ed30538fb3cc51f1b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}