{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x11c050694965834e1ef1c7c701e448d4cf9fe87ba81019e9af2a8cd744c35271",
    "signature": "0x56709bbc1b6ea173c66769d3d89b8dc6708d2c6a8dd5ab28a7daf0a2c1f6d7c848558e6627aa3913673f799c6d6f0eadf0aedabb5a74955f5678b23fed907b871b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}