{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "852967795",
    "entityType": "User",
    "nonce": "0xf4ff9feb09a3656a25f66d7cceb7d3f7897a4e9371825ad6a3209aded053f1cd",
    "signature": "0xa16e5bf8b04abf7a4f35abbba90134d5a3c075b905dcbcb2f148a3e146f96bc506484d5ed266bda20834cc450cbdeae849c5d97b29c4c7da34e890fce7dc60171c",
    "signer": "0x2C4DB7DB5E5E0C2B51D2944aB8F283c16d49B898",
    "userId": "84949150"
  }
}