{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x46a37c03bbcaaf4bf74100db50a0cbf911b31f33835b6a55fccb47d567796f3e",
    "signature": "0xa21bbba545d56ced6109ee9677083fe9194a4bf3cb64ef2f1295928347fbf5697fa02ce7d743b35109f9ae80d3e5a4e566ec9f2f9d28e484b3395a8ee1b7d8be1b",
    "signer": "0x406fd2b6f6C6cC5622Ac1c5799cE4911D81e02a7",
    "userId": "461949730"
  }
}