{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "340633",
    "entityType": "User",
    "nonce": "0x24407fae61a35dd2d492acb06478738a8ed7635bab6429d40b66ee838363a0cf",
    "signature": "0x9d1b5e80907c6efbf9f467ce906bf7e59ce4434aacfe9140136cc1f11e63b1ae1afe6123eea308f486979d6686be562c4753a0a631d229a19d82cfb46ca238651c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}