{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd055a29d0c12087bb4dcc63c620279fb5f2e085a08cec0c0fa154076b12a0bc4",
    "signature": "0x57a04aa64b62107c271349de6338125d1f07de5d9ae179d758791de3d711f4ed4bdcd2be6aecea73d0230128973192befa75c1f3d31e86beeab3fd078d3673611c",
    "signer": "0xCC3Ff6C19A940cd7B34B89C5717B314aB0ae7F30",
    "userId": "103386040"
  }
}