{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138385",
    "entityType": "User",
    "nonce": "0xbd37fa677429779b252e8d5ab20f4aaaa6772c894c5f5b9d48b57a5f9ef1a501",
    "signature": "0x674ca88df698a2abd9e4a827967c8ac9d76442192f1eaf78e60893d4477c1427377f4810c3c6556d5c6e8d09caf2a45934e8ebf395078f1906e4f1ec04bdf0c81b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}