{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xef392547bc87e456e60c7340ef535675f0a65e8c62b31488d82ba918cb8960a0",
    "signature": "0x3c511241cc78c7303eaf8dbfc3a3ef8bf7cc08ce80e04e786dbd24401a4bda403056869e4d824761000935a19bb5a76a9c5a643696bd45a40c8c43967938491b1c",
    "signer": "0x60Cd4bAadFF697A191F408B1806d7C33576E5a93",
    "userId": "2989"
  }
}