{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137515",
    "entityType": "User",
    "nonce": "0x4ed27bb643be0744042bfbded1a301761ed5b1ec03f523f793f07553580391d2",
    "signature": "0x938c7cd6e3ee03344a6d2c24ca21eab0b23dd929eae5042d7a1599fe9af7ae2b1e802e9efcbf52614777f9d45151c82ba5fa6a951c420112ba79d71c8c4f6dbf1b",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}