{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "287596",
    "entityType": "User",
    "nonce": "0xf534e6dba60dccafb8e32884ca660494d2ebdcbf014faf551ab97581f575e6f1",
    "signature": "0x9b5d3b2672c9a0e77503386d2816749abc5dce2066aa3f0f8bad011efb11c1df6eb8032980d462cae04b1474a32e4ead468a425a6551fcacc32ad437a04e41831c",
    "signer": "0xb15e0969937058c681E67343137f40F72F50d99F",
    "userId": "790717795"
  }
}