{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90313",
    "entityType": "User",
    "nonce": "0xf3ec23e1d1d1b6351fd2bc66d1420ca6ccfda8763640e024df314b00b2d4788f",
    "signature": "0xf091dbf8b0efd94768dbdcc84939f841e32e4094ae8479a3c9d1104eb0e6939174faeb35a3bcec39dcde13e3d6fa9b19a2c68be663f3c65785d77251cd66416a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}