{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "845727327",
    "entityType": "User",
    "nonce": "0x69ba139598b8ee69c87e9e4dd022fb7226712da57740436922644ff2a5ddbcff",
    "signature": "0xe5a6ce8985371d381b0cc6c584ce742709f6810192227b4cc7b66c1a65347bea073553cb86df4204e0a0b182b846acf1408ab3081ab03e4f6690b7e8502b07d31c",
    "signer": "0xDCBa834070cc02e7e4bd536cD1644e43e6C941BD",
    "userId": "214528491"
  }
}