{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "187397058",
    "entityType": "User",
    "nonce": "0x18600585dfd0f99f921c419d0b419e6ec84093df0209f90d8777bb9d45e77536",
    "signature": "0x277a1da8e03f16a11eaca3a392a9a47f6cdcc165d9af8eeba2f5c7a94f71db445729a6ed87241648f42321b043778432d94b6a60998d4c81f0a8c96d3f32bdfe1b",
    "signer": "0x08a70f29974EFfabc33Bf789b63C0fbCf119F6F7",
    "userId": "470328"
  }
}