{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1498334",
    "entityType": "User",
    "nonce": "0xc7424030d371dcb7d19d393a788c61cb36cc11a7caba95092940917dfaf07529",
    "signature": "0x2b0c3df299c10f06730c88e5e7f6e2abe1f3f65db05f2672644b89c3fa5110222d1f686b453af168402178e25ae913cfe0c92c95df55de1480df36ffa70104e61c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}