{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129491",
    "entityType": "User",
    "nonce": "0xe88f0b542872ec964c17f2971b0501d8212efd208cccee95e92b68175a3b3526",
    "signature": "0xec843135b0dd2d4cfdf116470326002a20f1aad41c8ed8f5a1b345d3db92f1975e76a84157b92db2efce79527626ad426e2bbfa60f97f1b1b8d88f74d01e35d11c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}