{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3495",
    "entityType": "User",
    "nonce": "0xe0faa2909b43b61ae972be74b8e70adc2c8b4f5ea627c81be4221a51ce002abd",
    "signature": "0xc6f04ef34f16eab3361d4198fbfc45423eea1a165d7df40738404dbb783026a013655b6f0687e40866c83cbbb0f9166d8f2c157c8e614039c7cee58c54e1ea721c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}