{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348079",
    "entityType": "User",
    "nonce": "0x43b46de6a45be03c73ae8e243600792f05e7d14ae55f38e7dd79d49271803064",
    "signature": "0x6e8602feacc49ca050c1815ee66a9e35f26bba70c098eff1a6fcc5ff846809724705e24a9f64372c3221fc2bd945f85a1015efb43cb9660e9c33d78d705cff871c",
    "signer": "0xe74EA561439c78F34f4928Eb44ee8Bc5d67c3d45",
    "userId": "781858883"
  }
}