{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x334ae3d6c74de2146dc3a9aab2173e7daa217e12155e6c646ef3fa8dcf182b4b",
    "signature": "0xfe689e5a00d109ba408f160cfe029b943902bbc82909232018d7c203364a376c5889f93c7f7710454bb19eacdd5ed4040aa4a12d5bb886308113d29ca10eebd41c",
    "signer": "0x14693D3dDF26e0e70845c87CddaC0E2F4692c710",
    "userId": "553005221"
  }
}