{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53770",
    "entityType": "User",
    "nonce": "0x1e87eda7402910808e4e752c08bb443bd367e98128c24d6b34fd934360039f17",
    "signature": "0xab7d1105c89305d7db19a6985bf8c02d070115708f4bb1d3e74a64672a4772162ead8f888ef51b4992d6194f781ea3548fa9f6b2a5cce7a61e73cd994bb51db71c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}