{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "890797",
    "entityType": "User",
    "nonce": "0x84560ddf1f56a2127662d9bd722aee03dd1a5b7f825c56f242756ea8fea446ad",
    "signature": "0x326ab24f1753317bf785161b47fa4b5b672f1c808a5491c1fb5c306c95d6b44a007afca017ba529b1058d4bac7dae79ee4b650144e46c06bda8ae775d0895cd31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}