{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42182",
    "entityType": "User",
    "nonce": "0x0e7ce08c2db4032b1a3391995e6fb8647a244121a04cb446e8c7f635875d3b1c",
    "signature": "0xec66009ae803b0d3d59a72d6087cfa9a5e44d2031cf032c3b4452be6c26514be779c27eeccdd05fa35217d008d7c309cd8f5f208a00ffb2984167b94f64195e91c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}