{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6a281e0ffc3b6065b3eb700a06cb02c754fff88e9acd83116b4d01f520e5afff",
    "signature": "0x60839c7c15eaa7f60c56675421baa644c8beec9d63c8344e4740b4df57a2d3b71419d8ce03a42fd72bd8a2c1310e20b1250a77f18a227a2c3431f55f507ecad41c",
    "signer": "0xA51cC50F9a1d4398ceb06Ff234CC00D28A4a47A3",
    "userId": "614762481"
  }
}