{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343187",
    "entityType": "User",
    "nonce": "0x1a829467513e1e77669b2fa9523c34a31d512df2c081f202db3b45b8d1c355a9",
    "signature": "0x045049101379ab74a8b817cdfb328445b1ad1b198a5b05434713004fae4db1f6047f56eb6776a66041d8e134ef6af9526ede909f42db1e537639a145d104b8ef1b",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}