{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "420620027",
    "entityType": "User",
    "nonce": "0xdb810df230c8e8fb7fb7773df642164ed4510403bb0146f24d99898422b70fd3",
    "signature": "0x954eb4f4b881616fee262c48098d1e2b561a89830b0d12887cf5b6d4f24582eb33657b91cc4ce667b82047ed3f12e07de0ad38206e54dbf2b90d0039d771ca4b1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}