{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x262fe7fce30e9772ab73b7a888c7f82c6a1b74b4a450251b61dcf5ade3ebc63f",
    "signature": "0x68a73fee6887979286caf73ce0a14a776144b87a3da94b1342c7899bae9b2c6a4647379506d9afe48b8904355812aae6464eb430d191aac0513228970da6af931c",
    "signer": "0x36c13B695f585cce717b67739DB9908f41D1F5d4",
    "userId": "639958016"
  }
}