{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "814721941",
    "entityType": "User",
    "nonce": "0x4e1c744ce7d02bf41ae619b7ead76ca6ebab1c710f9e6e6e6b1ef1b65380daf2",
    "signature": "0x8536ba8450b5ae15163ec663012694c125222c106d446ccd49d8aba0e7e86153007da1fce44fee8c1ac143007c37093be24c31c12d0b235707dfce86cfa887271b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}