{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc2df046669b52b2cf6ea612c96df77d52ac0e8afb23759cc6e4bd5a66403f08f",
    "signature": "0x94f1e09867fbb9240ef7dda6481b47cb50eb9a22ed4555dd0f98d1ed4079887474d47430a2bec855416731901448ad50403edf857ae97b5f074fdd861926dffc1b",
    "signer": "0xb821A3cB073D15E1662563cCbab856A4F53eB771",
    "userId": "269481253"
  }
}