{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "378297",
    "entityType": "User",
    "nonce": "0xea11876d9d85267749ef1ad15c688d93062ff8769f4272525493f5999b7caeb6",
    "signature": "0x2bfd910707042407549121a6c57f657b917f6ea8a4a95d9cce4c87f6010f31c51f9a26369db18b3fbacf64691ec3a450afbd644cb1f877df50f7c3f4ca0441e81c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}