{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1666731",
    "entityType": "User",
    "nonce": "0xbea919742d92f040595341892fd0926c7f986c051d64600d9dcc37d2fa6af1c2",
    "signature": "0x3cd06868178ba643323b2696a8c57e155df7f8516fabb97913a7f698fb0f75db2096702db1b78a5ebb20f6aee8528e80aadee5eee095434b709c393ecc463c8c1b",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}