{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x1df48239b0195d8188dc89388d9366cead0fd14f1f9df1fbc4e847cd301d68db",
    "signature": "0x7ea816e8d141d3654dc243f945b5c989dcf1e76db1f826bea2ff91e82bafbf5f487a56544f894bab7ab25dc9802d600b1a640967965ed673b740ba0bdf193eac1b",
    "signer": "0xf0FB6Ee8Ad56eA2e147d118ecaa4eB46cf03b448",
    "userId": "831640099"
  }
}