{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x995cdaeb23f25b70b00e212edd1aa93378ba0942a8ddc5fd7a3713139831c995",
    "signature": "0xaa20cc9294a15dd19c62757c42e4a1a19eaa0747d58bcf52dae077bf92b4463c44a80423fa401d4b021cd7b4cd8adbf02e9f946789c34ebfdf5653fa6124617e1b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}