{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "936976796",
    "entityType": "User",
    "nonce": "0x9e8ee1feaddd134b1df6fd577689eb537d5aa8afc666c6727c90a8f2b484588d",
    "signature": "0x5dd1689b20edc6b57f972cd7ad482e24e2c85853184708247cd32c8b34553a06061b98843e64fdc230c0072ba22fe75d9cf33842fe764e6ffb518502015137b01c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}