{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa83377b5c332263e3990c178ab3c3fcb5b3703e352613cf649d99fc790450fe5",
    "signature": "0x4e2b84dfc76611a47a987881ad2d9616f45f80cb4f5c44d1c5334fe16b3d58fa18aef803caa2a8c637eaaf70ccb23e8cb7828763da5fe397dc6c261487d518911b",
    "signer": "0x962AF2A26d37380825711fED9E6c8e5780A24650",
    "userId": "341890729"
  }
}