{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "192467",
    "entityType": "User",
    "nonce": "0x0d9b9f530e28b1795482011eba6b6dc31374c2043a11b1900bbf097fc6565446",
    "signature": "0xf96e2ee98db97a0f29f8ddc654528b506ca4b7f7baada45a70f9f6c6fb34cc5f2aae64574947e793e5fa6697a7ecdaa75e2ef21d62f99c2357f2f7311d981d9f1b",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}