{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8128",
    "entityType": "User",
    "nonce": "0x4a6dd4d467c8ce3ed245effe87fd64062371ae4f9dc7c7f6c585cf54aa90da0b",
    "signature": "0x3659f6acd95d7839ac488660331dfe9bba5d2aff9d947444daa4853f869957f93857c8fde40f472dc6a8d6c15370de2e9a8f7f34678b97216c5e3933218a2bea1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}