{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16326",
    "entityType": "User",
    "nonce": "0xaaf4b0760e7dbb8a9d6441f1bb551f15680c0f864eeb52aab16f8dc3ce02ebd9",
    "signature": "0xff5233df605932a645d5271be598047152372a46391f40f323f7d4f8d3e1403119512d07c1285505ceed4d421b353504fbadb30df68c8cc0e00c6b87e34b96011c",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}