{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0xc5f71773e4ade7caee6dae23aa10b9694d71dfaacf685c2197b04e00c1660ce2",
    "signature": "0x034765d132253cbff6f92079bf4bfed2b5a05f1373d80dae9a55309624ca52621802ca739c7b7e1c97ee612ab828a485c16591ded5a2967455892beb77a2acd71c",
    "signer": "0x3d3C9a78785e201CD119b8f74d7d88D131bB3cb9",
    "userId": "350266629"
  }
}