{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "279108412",
    "entityType": "User",
    "nonce": "0x1e3975a516ae5f838cdf630641704f7c8f38146026be5641d8b8b1f0b4ca4462",
    "signature": "0xef3f9330956b0513d7a4a7a31010435311a520efd37719d070ea0a0568c44a5240d7e86a03ee1f3b1e20364597c1623c57d2c9f44979931d5e62371e3c6ae65b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}