{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489615953",
    "entityType": "User",
    "nonce": "0xebdbf41ed2cc2c811925f72cc03d669d32ebe577353bf8ee3671ab7ea475b61e",
    "signature": "0x328309ad270d3607567bd2f49ac297f5de2f8336c14c55a15f8d2d24a2c32a065aae950628eb3597767cf92c2c64bbf59b02703fef7ed9a373c8fcb352fb869e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}