{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306850",
    "entityType": "User",
    "nonce": "0xbcae2e9b6faa69ad6f1ff7860fdf9e83f31f4637e869a56d9e82129a705b7505",
    "signature": "0x976fe1aa5aebb7d9a5f7feaa8b4fbb6071156f1a7549ed020d2bee6da799dba33019907db9514c1e4fe59ce59089809b1f76f9114d448fbf9c40dac27cf13ce51b",
    "signer": "0x1c4Ee34565eE3A8304706138026D7518821F356F",
    "userId": "584804802"
  }
}