{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xc6ce546f850d65c63deef98d81baa8fbb480ddddf991d7b832ad5a80b95b807f",
    "signature": "0xc63681dbc8d70f94cea8171583aee9c1fc74b709db297583209e1ec6a7d18fbc4095251ac966e0980cec0a7bd3d59e8f299c5efd50ca34558f66a2f12c7d255e1b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}