{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4d7039df4ecdd328335f438681b23e453fb9f7f3f02f68fe3d585b3649ab11c7",
    "signature": "0x5dc8632a4501365137a19cdc38e6f0dba6f912c1c37bb75f252627024e1fb28759677d968f09c9720af466e98e47aefa82699211b796ef4a3c8a518ce4dafe431b",
    "signer": "0x7bC387910b76C7c97Fe4ef3EF17676dD5374A771",
    "userId": "60376272"
  }
}