{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x43b7fa83554f0e2e17ac759e82c24f3b5910a59f3632cfdf21ddc3ca1b188330",
    "signature": "0x3ab60010fc46ca0600ea603018e100d8e44c04ab1b90aac80efcee1dba3970790781fc805c229028ef01afc7e2baa6caf00f1350794f30908713ef274c5e833e1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}