{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xec1b1b002463369ac7525c82809136566f726522ade2752eeb350c4d02dceb18",
    "signature": "0xece6a736b91fce4d0f78b9466f7f382fee90a91272d27337634f9a147d5f124c0eae6182b58e4a51d08d9575016ab3911430b1c8aed92cffa4a30ef8ef072ed21b",
    "signer": "0x9D360ECE27645E249fbb45fC03AeF953A81031Dc",
    "userId": "579726392"
  }
}