{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620449233",
    "entityType": "User",
    "nonce": "0x3b2ebda025b802920f88f9b526d80d6bb5ee22c5962109625eedd84982b27fdf",
    "signature": "0xbe6c19c59121308d8e957de91c091b92e3f084d5966a7767e6b4a12bc519deb737aeac890410e3a68e1b9b89b31ddc7c1e0462ea69f6d828bc557601e18d9fad1b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}