{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "628866473",
    "entityType": "User",
    "nonce": "0x787b8d27f00138908dd84e03bd564bd31baadd11c1206572f5ab7104d6a74195",
    "signature": "0x9364c15e9e3ddcece3b2651706ec1a72e7cf20b973032e8f80fcdf5cce69c96000301852ce16ecd7be622fbf1981a375ecead66d532a95f22af0f2e718a9df141c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}