{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7407",
    "entityType": "User",
    "nonce": "0xd080d1e8bfd159331efa3105e399a64f1f7ceede840ee3e9b4daf453284050bd",
    "signature": "0xd50af1b665afc740f0b851da8a1dff755ab4a6aad679df26b806a4b27cfd64b847e32fef2e88c75a2fd5be9fe81d7405a8919d5a0d01af7ec6370ef813620ad41c",
    "signer": "0xc5c542a604880bF9049870Ee92c9CA4594Ed3129",
    "userId": "277347377"
  }
}