{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18281",
    "entityType": "User",
    "nonce": "0x12839c894ae432163fc7921430884d63de123f204e57609d20aee31c00a832ee",
    "signature": "0xb148b33e2808e79967ed9dbacff0080a843111bb10ed1195302ef1d11715569a45746ab46fc0c2f3d34d685cbfe50ee7bbd1bb48be104c85721bbc2ad22e338d1c",
    "signer": "0xC2A9E3b7F06e60ef97DFB73522582B613021cf7A",
    "userId": "265825696"
  }
}