{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xc5c95e2148ecc2db4e6b521630a945fb5af131e16b3c9fd06c9f9b83ea93726f",
    "signature": "0xaf2f7ea6ec83f8de945e64dcb5e5ecb97dc394ebaf304cc18dafc1ae440476d077813d66e87559b9bc38b9cbfcc1a6b021db24226a2800690f16f25c856fa4601b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}