{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38769",
    "entityType": "User",
    "nonce": "0x30e730cf683bb1533cf8dd422f1458b4c5fd3aa593d447908965d8402b7dadba",
    "signature": "0x2308c7a8c3b438c55ee1b06ab5fa1c77370c025f0dee4e457b4bc484f43849ee58ada3bc229bd2044749e81cb65d5a0b78511617dc9367dc655f3c5d9c8430831b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}