{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xca68eed5e53cc7bbcc0810c40ca73b8c13248a081c51625852157f3d518dedc3",
    "signature": "0x096c57c4942fa0a71e00dd88d55cf1f0887cd9fe58f7d06d3295ab18d66632615031badc202d66d0cabc2903b416a62cd69a2f64b25f366d72b906116c1c2a821c",
    "signer": "0xc8C11Be52705F2664a51f2A1ea4392F4C53e3a39",
    "userId": "457963495"
  }
}