{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2047015",
    "entityType": "User",
    "nonce": "0x1835faddb3f372e515bca12beaff98bc72e83f2c61a82bdfe7a6fe604fae3404",
    "signature": "0x310a0ad6944fa7e88c463305c1a6d423e748f227e1f22cac38e2758f4ae4788512c9cc7cd04f798ea367fc5e43db8634899592d400b243f53725730db7337f971c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}