{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "98723",
    "entityType": "User",
    "nonce": "0x18ff5def784a1b119d8b4ee66dfb97d54ba591d929fd7a3b578d88bb038cc44f",
    "signature": "0x44c7461b7855b47464ea80219a375fc25b2ad6960fb97fb0e9041f442a1d0eb26abe0fba10a5a3ab504e26ed22bba88cffc4f746f705b84c014092e77da0a3b51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}