{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x86affb6dc088f38e2d690f2d53c6bd65ae1db897c81946a868e2e1f8386a7e49",
    "signature": "0x58c07692e0e3c357259a39fff43348890daa6a3658214aebdbafc2edff3e6d0339d79c815eaaf00d13ab4d4dfddfdfe7527c74ec4838a40e17110ab999caaba51b",
    "signer": "0x9D360ECE27645E249fbb45fC03AeF953A81031Dc",
    "userId": "579726392"
  }
}