{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164216",
    "entityType": "User",
    "nonce": "0x20f432f5b74a63156e52ff08754a5eb1958b436bafe2801105de57d5320ba3ef",
    "signature": "0xc1fd813c6f1ed77c37de5ba879e8078b68a322dec2bd8d5c68805015cb59d6e5792b822e370b2c41f8df8b07b8e1bf91df4096942dbd41962c78a0ed6d7274031b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}