{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1694337",
    "entityType": "User",
    "nonce": "0x618f0106c13eb1ba3ba236a41b589d4607e16b55644c4fbd4b3d2984cfc4dac4",
    "signature": "0x4b1bd92720e48badb8baf5a9b7c407836f5d5fb92d8610105bbe8c7df2b4be2717ca181d4f06d6d9198dd2c500c9dd820b97327de1b056b32fc5949f48ccac331c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}