{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "101669",
    "entityType": "User",
    "nonce": "0xfc55351c4479dab20ce5268e7dd48320cd4e91ce1f7a694deeec2c66fbc3b007",
    "signature": "0x64390bcb5d1818e8fbad1495b194895cbb60e99848ebf6396d9abfd5af64f41975da0422e2ec822e01686f47bc0728a1c28f108cfa69375bff494c7fcca8446e1c",
    "signer": "0x12D25A7a19Fe8130A1f3de655f59f1ac38Fe29fB",
    "userId": "566281511"
  }
}