{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0xceaa0455f7d53b693d4d7d0cc21fccea429493e44b298311a6b4405533929647",
    "signature": "0xb56cc88de95308c472c02d808e98b3f4d5649f2d6d513d189292243e2cdcd789304dd386c1e80e21bc07e6f02f3e86b57a30caf06bfc7ecc7b8b46f0ddab16961b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}