{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "809421760",
    "entityType": "User",
    "nonce": "0x30dd04f6a90728dad40b554af81682ef42e172531d1a6ade3ac4e5b439ec40f4",
    "signature": "0x72eec851864efdaa7370691879b39b5222f6fbe4acfa1ab97526fd3df905b0143e58031f1d0e3a98ed3c4310d2a2a9374e1e7c1b1f1f23c33eabee15559a7fdc1b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}