{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144992",
    "entityType": "User",
    "nonce": "0x537d5c86f1960468aa7e02d83234eb0817660727f26dd13f49375935fb6d2ed3",
    "signature": "0x0edc84bc87fb566b6955c640f5755968313796bdf9707b5c2aa5330dcb42ff50183d25f16756cca433431d4690dc72c1220024acf50ac3f15f98d193016a629d1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}