{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "513584296",
    "entityType": "User",
    "nonce": "0x5cc72331c44d81b879d9c410005e73fc5950b7b7925cfecaa27595aaff6934ee",
    "signature": "0x582da9739b4ab86a6a9a53ae70efb325c9bd75c2fca722efcfeaa9768a53769b7a64d3e79f581855af374c8e0fa944bb1b9d1a3a28148b0721fb19a847ac46f71c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}