{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "246996748",
    "entityType": "User",
    "nonce": "0xdff3aab0955f42768d8f3fff622dac3ce13104e9b40fbd829f50b799d245c79c",
    "signature": "0x64b37205952eee2af7442a17f969569be1e5dab8a30e134c65d77eff87e1a937697c980d5fa6878b63828fe5828084a7bbdd2aff0e88632fe5d19480da9ede9e1c",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}