{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "665370465",
    "entityType": "User",
    "nonce": "0xc88053ef943c55b855cd174d9b25c5ffb5c3249c6b4f3e50bd24191848eb851c",
    "signature": "0x8375c2f69642764bb081529f542b16d7d991c0e5983df6b4a57d4b4408515da4136fa1d7d5f3bcb22e8c75258af5c1f51c0feabfde61929e30d64d92138fa7521b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}