{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc6720fac3236a9354b4696839af5ba609b7d7875f9a2275666872e9d3c57d8fe",
    "signature": "0x520e44263f1f7140b8ca2516374e15cb5dee1dfb7929e61f130c495e570b883a5ce97d25f82ea6d2e01a5ac3da186c127b4ade689263aab6a41ea308eb7bc0261c",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}