{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335878078",
    "entityType": "User",
    "nonce": "0x39e7fb6f5ebe536f499ab9fd5472f1b23361de1a9c38114e827149df539c01a9",
    "signature": "0xc9faa6d0603e5323298e36e5add9539fa4620fa2e71cf6b01bcb543989d1e2f741f18aff23b0e82bd19432125164be3f68edde9058b12ab3905d7dfadde1c6e81b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}