{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428386",
    "entityType": "User",
    "nonce": "0x3ea4b72db532f86f1e7ad54c05de90747d1d902ff2008ec3268e9c65e25517fe",
    "signature": "0x324c1d5185c582f935898348ce4ff8eb66d09b6b8c4c4d90bdeda93696d6d3ae37003b974af84325583e6179b176db2d26cb91e5a95141c4aa48f8cd1df88d061b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}