{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948584098",
    "entityType": "User",
    "nonce": "0xc2c3975be012e70fdb33ead37a7e76701604474d772e92b46d93fc53b196ba7c",
    "signature": "0xa78b892800a585131870b07e71e82417f665638276f2ce9bee01ab25e3d42dd91d6a47c239874a06a9f05bc71f84e57114c6944c918beb78552f574b97bf35dd1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}