{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08937588afe9d47688073901ac884f06a41ee659d1d251d346583d21f1d9dcd0",
    "signature": "0xd38a82fa25c7199a2e9c6527179f7834c5c1e69aaebfe6b7175258a5e98c05f17f9931c79beb0a2896196c21fa5ed386a6deaff977907470a09d7666d484d75f1b",
    "signer": "0x1555636b51CD7261B750C68f520C0B8d1b9B8dEf",
    "userId": "381165787"
  }
}