{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37654",
    "entityType": "User",
    "nonce": "0x0ddcaeff09c830682f6a6b575516c1c90b7772aca25da3148d0e30286034f650",
    "signature": "0x60ed067bfb0213065619aa3075f5b80486ff335c0eb8d401c5e2afac618425167feb57c0a9885c1c429e02ba995c7f98abdd24de12c2bdf80507a73a8d68ffd81b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}