{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x88faa27f3a13ae3b0dc2db8de43355a31e1814e5b0a72eb5c751099777c90c76",
    "signature": "0x9f8ed82f18d1a7b5af36e3e982e0a98362dd2fbd643c3d08b3b88a1bd24208ca094635bd0888ebd887e66a0a052a4f24537fef379d0db2ecfd61d2e623ee67f11b",
    "signer": "0xf20d1BDB5181d5b5Af341b24cd0CA18Cd5D3f264",
    "userId": "69147530"
  }
}