{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "730225845",
    "entityType": "User",
    "nonce": "0xdbf7aefee5b0e18c6823ffd121a814682d34bf6a83ab629b5a1a5b41bd7f635a",
    "signature": "0x7c3b598f7d9ab8a4c0fd4957687c6b97dc3dc69a41a439598597ac487cfb21dc3ad4ee575a25266a75489d3f1578929cfcf8502f017c0ad16b1b06ef3f8f4d751b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}