{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64861",
    "entityType": "User",
    "nonce": "0x3d3661f96067c1ebb013cb70519e120409b3d28c4f892949f1178fff466d3174",
    "signature": "0x6c4b8f75ab06a6cfc3531e0e94831906f99506a91f1c6aba7f1b7ee590a719d33cf5020386e3534eb941935449cfb9fe90234195dbf79ac86937fcc269a329d91b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}