{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "601282125",
    "entityType": "User",
    "nonce": "0xc3e3a1ef7abbfbbf8de522ba10755c764f6e1d473b63139b5fd068a5a3212eea",
    "signature": "0xc9ed65a4304b073f58fc4938e61209f853a7779dcaf58effa16f1594b1b3c49856e50277c6aebcedec3d2f0b42dcc138198a8353b5b8e71a3134245d5231f9ea1c",
    "signer": "0x4Eb7b4d3E5A99eeD9Fd090eb5C8692d905b61EF3",
    "userId": "94041"
  }
}