{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xd4f8347f54012468208e7414a7723d2187232701f4a705303fe1ac3cc05fa78d",
    "signature": "0x5905f083ea4514fc5417430be0b36e65efe560c6d0e735460c50676e71b495df761be883684451d7c8997946d3acff0afb74c43dc476806c379991913f61577e1b",
    "signer": "0x406fd2b6f6C6cC5622Ac1c5799cE4911D81e02a7",
    "userId": "461949730"
  }
}