{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708291620",
    "entityType": "User",
    "nonce": "0x206b87c40964b986f046b8e1fbb94a74802b450aac5f1edac5efad90611d13b9",
    "signature": "0xedafdd7c2a74997cc312e7a20770e4a9162ef8b09061640e46f2881ecdd926ec29197f232aa05fb88a1c6723020489e5ff3fba4437307b829cdcecaeb2ab1f341b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}