{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x167a91f4c1b0dde8b974c4331848f9d9e335e1dfd8dca978b4299785131950b9",
    "signature": "0x9a6aaa7fa71087c6e358d691eb7fd728ebf6c29ec651ada853a0b3941710ae3f24a2d24bf1fabe58167f6223f343ac6e8ddb875c9c8e27d70067a1decb85c0951c",
    "signer": "0xF300c20BDBB459E009c4E55c08CFd33E12f8B0Cb",
    "userId": "782218508"
  }
}