{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991071",
    "entityType": "User",
    "nonce": "0x2130a8cd7d6e8ed73bc011cf1a922b3cf2e6e724cc2c68673761c8d160b12b10",
    "signature": "0x20908f43c3ddcb259a2f8377cf1635d65b2d8cfade41817b395eb9eb70f2045732d899fc319bcf0104427814b191ddec8760edbe4df3e4b8670623766c91d41a1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}