{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9d8df823030906681d816ad575f1f3873a4ae180fdc055696f22fb2277450031",
    "signature": "0x6dddfaa3f98f2f89689df246093443123daba7577f1af46f7c67cd12ee30ae030c97e800c14e49dec07eefe55aa97b9ffbe179d20fee10b394fb800152b9e7fe1b",
    "signer": "0x85b05A5e7cF0feBb14BB5feC1E645dB5151F8e8b",
    "userId": "104634770"
  }
}