{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1346",
    "entityType": "User",
    "nonce": "0x401cb7a099211b3df557a08b02dd3f1234f6b38c26a8c2814acd62c113a9451a",
    "signature": "0x1160a5d752db948e39759e31ad16bb219a558299b241d7e0f2df11c1479a4a1a59658efa77181ac64230a44b10d00ff77696f413debc5d49452e40037fc84efb1b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}