{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "126172",
    "entityType": "User",
    "nonce": "0x421804dff8f4056935ebcf12d76d229ef66a19dac713311767dab83f4cad3232",
    "signature": "0x4602a9ceb0699670d50733b9fe4da92fa3a752b75e7f9858cecd92d621e29ed11a08024f7f30ac24a310f37d105e07bb1eff50cfc262047b5763c89fcc3b4dd61c",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}