{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494762277",
    "entityType": "User",
    "nonce": "0x372dd021c79139d3335487a6214ea31da76a149fb9ab0d3e2f2e2a56da0842b3",
    "signature": "0xae4cae3398927109bcbb51163a7747215d8115f3fe28c874a87128e26035313c2b255e6104116b276fa6fa68995287fcfb88f49567e06763243961c5e82bea291c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}