{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x65d465dcbc76c65a73a3d48c868382f6fd74aaa76eeb833bbfaf2ed43ee8fa7b",
    "signature": "0x248b5a9486ec466af12d8d466baaf4c068987dda3f266bc52f8d5f20eaf4a7c4479c20ff9d32f58bc82eb0f2ce10ea80ea57ff33813c1f629c5fd45b240433ca1b",
    "signer": "0xF69c663aaF9601589703d19F817ad286Cc340Ff5",
    "userId": "385624413"
  }
}