{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13283",
    "entityType": "User",
    "nonce": "0xd83440237c6e292e3eb608d6ef0265930f379fb25882704ad9ca93f7d7aa0139",
    "signature": "0xe646d2346186487c52200e2aea9b14973083996060083c557625e26359db74cd6bf24daa478b2822e1c3206d05b5fb2d46dc1b2c24b220637babd4c9419bbc831c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}