{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16460",
    "entityType": "User",
    "nonce": "0xc0390b0f092957717975ef6ede24df71c4a1afc0df85d1f4c72fce6548577b51",
    "signature": "0xc23b4251158719d3893bde237e6c8d781c384acbf5c7936f66ab7cca657f3bfa7563fea83ff40383f118d8447287d50227b2fbbebdf99a7b169dd074152f28ba1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}