{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887242445",
    "entityType": "User",
    "nonce": "0x5633c03f19cf22c1628ba9a23e3c2667db226cd40f9e8c9b0f15ccc4dff8c303",
    "signature": "0x01358f5411785de47fc9096bd0335643dcaef72c49a40f498737be064c2be90c054b49eb4f285eeca4a4873717da169dd3d99301050c8c247c906827eff4bb901b",
    "signer": "0xB37E6e788b6A39dCDcB53bf8D70077f76F5F5C26",
    "userId": "895209133"
  }
}