{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6252bcf459c809c76a46226c96bcc13ba615e6e9cea029f6a750864a44716b0d",
    "signature": "0xd753bd38335e28f9442ff20fb5d1a0a07600f0865e7142995a5cfcebe56332f20ee7625b3c004b49a60fbe351b46c1981c52e3e0b2d5e9052bed64f23d1660961b",
    "signer": "0x9B32778f2EDac6d5b8BfccEBF5594cC72d68cB57",
    "userId": "847013225"
  }
}