{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828368024",
    "entityType": "User",
    "nonce": "0xae66c1898c37d1640ed815588dd0bfb50ab31df8d70340633c84b216bb923fe9",
    "signature": "0x76014517eda42fd8b32eab793e407e41847aeabdc717f60672d5e47606816bdf4da963c6e953f80709e2c2779311704eb140068e1f8cbc89bdfca6c84d4a6fd11b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}