{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "312778",
    "entityType": "User",
    "nonce": "0xe192cccd94ae92cce180b2970ad343e32453426e6857091ff89b572a25abee40",
    "signature": "0x619b060605600e015cbe8034ce2bd956ca885bbb3768c8551bdf5d07329ed0046561d06eefc5bd381bf46a647c83f0087701e8427ad6533f91298850ffe9f3f71b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}