{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987199883",
    "entityType": "User",
    "nonce": "0x97ec40879225f3ecca0ce8fcc114735859be076dde00c3cb72b471ebdc59a0e7",
    "signature": "0xe20a7f895a1e6a8160e72482f4c8b9d306907c81ec44f8e082efc8abeee0cf353feee0094d5279aa6a514e0ba94660555026cec962f28f6e00ca736bcbe800b41c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}