{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10449019",
    "entityType": "User",
    "nonce": "0x04ea555dd390619b646e7b4a28c973965e9730b1ade093b6b0f259ce315aa835",
    "signature": "0x262bc03eddf5869eba1c4553a182e2b467f02401aaa09827d1a81d52c51670492af447a426727f29e9909a976d59559c00a5a68b30d24e4dd04ddfd14b5f82f71c",
    "signer": "0xF40Be525727aa96Cf61609f0A493d9E677f73a33",
    "userId": "159460377"
  }
}