{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1511688",
    "entityType": "User",
    "nonce": "0xfa08a47f7e0eb912948f717777b62d80d632df1b577d055d57b46788f0885781",
    "signature": "0xe759f12f7587dfcb23190facfdb8ea1b25101a4e145e4ab4810bd133013c55215289e9bba3cf2355a7aa088f3a7610c5735680ca7dbf06e1a5078247661da3331b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}