{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "633359681",
    "entityType": "User",
    "nonce": "0x06340a357522612a30c19d17d581a458d54cc78ff69d7b215d55b1d4f6f0f910",
    "signature": "0x197348e2475bc945d502362de0ed58a121059bc1c949e1b01aab3fac8b593f02300f3d29eed7904e8f0b7a98f8ee40ebec9734d128fbbdeacf6434a13803127e1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}