{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "670307808",
    "entityType": "User",
    "nonce": "0x1a0f9436fd30bf90c7d10c75a0e92bf8f292285ef8b87936c7ac419eb6092326",
    "signature": "0x127666bf9297be51bca7a00c82b79029964c5f21cf616481acde8d70a73a5ae02025da8d993743e2872489d920c95d75f2fe2fb04923cc78268589ebc7129bb01b",
    "signer": "0x4Eb7b4d3E5A99eeD9Fd090eb5C8692d905b61EF3",
    "userId": "94041"
  }
}