{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "85749",
    "entityType": "User",
    "nonce": "0xa1e931554a274f5464bfc16d8a0b252cb8e5cd3e9f3b3ba202ffcb6b3c8344cf",
    "signature": "0x17945259ec877b07f6964f5c00d4a5d0ef8fbac540eece6e95fe2be08020a78422e45c58597856c999fded167f64a6c9ee082ddcfbfa9ffd8ddee83a213692991c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}