{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "652998855",
    "entityType": "User",
    "nonce": "0x5f6947d90e5b6789704f3ad4f7daf513e141aebb92bec0c17e067af625ba2917",
    "signature": "0x2123abb296ab85838941a57accf15024fdc596c1ba2ae53f992b77c712a4b84650024d694f3784ecadcf836c719ccc78705e71d5b8cc597bf8cc5f171edc2ce71b",
    "signer": "0xD0f51E232A92DDc965FB1FE51d04200D15d10fc1",
    "userId": "536634479"
  }
}