{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x520721d262e436af8512c44e3fcb160513be9b13a389d553e8cbb8d5777a8eb8",
    "signature": "0xb00031a467020a0309e061c8020a591c5bc111e0a9715d006a1ce3cecc36b0980b6135c0fc1cd8aa04ee762bf337922a459d8db2ba2069d7907845b8606d3d8e1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}