{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50737590",
    "entityType": "User",
    "nonce": "0x0270d23172309525eaf31c2021bef8ac08e3a3fa2ab7159ace88e8186fb363d3",
    "signature": "0x950948cd99e8170ad722d02d33d2dcf3927884011627c00c48bdbc024b87e6cb694c6619e414db7bceef7358fdb7912eaf72d27652844946f189071730a336ab1c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}