{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320009",
    "entityType": "User",
    "nonce": "0x2f4de0b910e63abafae6d70e61d62b21295d2227d6a1cbdf4962be4a2991d55b",
    "signature": "0xe056aadec76566d862bb284633341cbc7ce543c4bdd8e3c28b828f407e0efa625b2e990221d0f8e55cece2adc3bd90ff2fd9ae31027772f2d1a8c48626f70aff1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}