{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x81dc28e2352e6c15b5ddafd4d77abae17bdf93287cf4aedf702181868f3fec9c",
    "signature": "0xdd2e5313e88f847bc7c6a1a72c8e38b2778ae5003de4d379c4d9ca2cb28c31f1417dd2168555db28ccdc2d1cad410798be0b82be09845055da6c0a6884290d8b1c",
    "signer": "0x083626C5983025BFec0Ca7BC8FC5B244f8e29b75",
    "userId": "482858095"
  }
}