{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0xda669e46079921bef18f18baf92b6c115c4c08e0f921a366393d49ed6573b61c",
    "signature": "0x674f02f0b68a825f4dfd64dbcc7658ee05496c2bd9015b4c6c884112867fb42e6cdf934ea69a4c581ca16856ccca83c74276ccb8fb1e74f345fd156c04e006771c",
    "signer": "0xb1537060b61d41E800Dea2976B96A78389b81Fd5",
    "userId": "595878300"
  }
}