{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20671471",
    "entityType": "User",
    "nonce": "0xaedd52c223c42bd707e5d4ea24a17fe8708600648842d8e0d3c19ad2628b2b59",
    "signature": "0xa6d9c8d7250ee650898db80b6878672d9b673991fc5f32f3a55fb5d70ae75152222c7d01243fb0be4837aa706150b9f98b43a75afa6a4edd1869c15ede78e30d1b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}