{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330824499",
    "entityType": "User",
    "nonce": "0x534e01fad8ed74644bfb7f1c3f2d6847383996f5011fb45385d5db3a495c600f",
    "signature": "0x7b1ce7953589a7161b56ae86d74a32b32651ab8740e3576973976b9c841aa6827ecf0c07cce69c1ade074197ef49ca5cfd87e501f6df97e5b5dcc30b33a1a4491b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}