{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "261999",
    "entityType": "User",
    "nonce": "0xeb87b10aad4acb29943896b987ce4a023e2655c1afb8dce0f51bb489728a51c3",
    "signature": "0xcac298a1d319d34eb6f439ba416304c3dbe778d6419d75e6efe06e2cb1ac26aa055d8ae8932d13b772b5b735eb0c764201501090dc135981ed2713bd9d9139da1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}