{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129174",
    "entityType": "User",
    "nonce": "0xdef4ae26b0336199deae9cb74dd5f9dd8428fcfb3c7e5b65e27fe4d247d3b9be",
    "signature": "0x0993a4dcb181f13b4096156f92c808ef3a3bf8340f6edbc720ba2f5a8bf6c7074dcd9a1f4b1ea5be29cc270fa204e9485172d3fc8856d5e4f04ec56738e8823f1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}