{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5290",
    "entityType": "User",
    "nonce": "0x78385a6d1912e56a4f3c31ab57f1e0c97ddd2131bc8d9a90bbfb9ec6b9793ad7",
    "signature": "0x28d2cd60edc235c84db2e321cd0e78fc671be52799e05e2e05229f113665f4b03b642dedde928f3d5ebf878c1bf149b5c6df211765e1d52c10f567a504bfe8c81c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}