{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17301",
    "entityType": "User",
    "nonce": "0x36cb2536cf904289ed331087d495677b2b67b3ae98bd294fb56af97a340f1cf6",
    "signature": "0xb99ee150cc96d3a2dc76e5e5d9740ec46ca372712f1e3f4f054b19edbfef0c0a45681443cf821c4620f56750cc7b26538b28f3b26a41c5cc0c3a1b3dee7676901b",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}