{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "780476090",
    "entityType": "User",
    "nonce": "0x09cfa70b9d0f3b528e173482778f77d2d659ffabc08f0bdd8802eceb15e1d2cd",
    "signature": "0xa975919430c470c6b03264d439b071d8bd56edb3c067be023dc8d0af64e8420430c78e9d108c13bb090bfb9c663861ae202e54af68c035bfdd8433fa6585e7121b",
    "signer": "0x5636d74296f8b7D23Af248f002189eAf3Ec60783",
    "userId": "318633148"
  }
}