{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18379",
    "entityType": "User",
    "nonce": "0x91bd41328400209a3fc767b6ef849389116f8dcd335cfb5de8eb1615d729a30d",
    "signature": "0xa457b166ab14d6337c484f9af7929108e4ce8afd6dfe840b8e3a8a26054612524f830e67a7de6f581d6c420db9084af8c9bbb54e7acbe31265b88b29a4a491c01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}