{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381576190",
    "entityType": "User",
    "nonce": "0x366a269394aaceaf49b437df0c2003795bcdbdd2c6a76ea0b69555dbbaaa2ad8",
    "signature": "0x1388158dc79be314f188f903968567e6c3a56ee10d92fc18691e7f5e52f6c64c568c282b5e3acb19b890ed0c33781eb1de1953a1c7ddd42844f342bbb3a752a61b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}