{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6e83f2acf2964823599b8a877872a9815b1812f93c96492b743859768b4c3d6e",
    "signature": "0x52c413d16ccc4031c867569d148c06e12a3b91c4e76f787af55688bc7e40437824e8ad5335a3e0e3a02c515c39044459bc894e4ec6d9acaa5f01ee62b973ed7c1c",
    "signer": "0xA95A925CFd7fA72390fCb16E3cfde8DA605c9213",
    "userId": "934425289"
  }
}