{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "813808205",
    "entityType": "User",
    "nonce": "0xecbd31dc4eac9700aa76eda4500b08a6a827de75fa70006e121eda74f23d206f",
    "signature": "0xd73987b7f7441804de76d5d3b09f553a7e5cff323ff3637ec48bc28a815a329c7610607a422024746c6f2368053141a5159b51049841c86b352edffed59e588d1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}