{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1261655",
    "entityType": "User",
    "nonce": "0x622b1fcede397bf6f7788ed9a516280a9b500d9bb4555bb6c2a076d14f33583d",
    "signature": "0x5e800f4bd3318e01e0c88eba455b51bb11507b2e200cc349ae3109f953df7c2d69589dbb3e09495ce1e1c1467da17a1c519022ad853ca0dbb5dd3adb6539b33c1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}