{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "990052786",
    "entityType": "User",
    "nonce": "0x022cfe43c71b440db122f9bd5667ec30041639e381ff0a36e0db2f28febddbdf",
    "signature": "0x2a9b168dce4c2d6ec71cd0875bb3f6befdd33da475004b18e09f23ce641eb1ac4958d5d204b71b082e0aca408fc56ece8a93ab5c62fda986a94394469abba1541b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}