{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0xa2ff927df45b07654d8cace36e71412c7e8a9111ca614b4493a64d772ff51fef",
    "signature": "0x1ba7338eebd4ed7cc446bbcdba045fb184216c18c2436101c526a90b1b5218d41dc07fb11e0d1b7b6739c2cb8ef6b6a69d7a3cf069e54942497bb1624691f4fc1b",
    "signer": "0xC59f7055B078B1Ee57c271E19BE5Dd7033FD64f5",
    "userId": "950751701"
  }
}