{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "591132333",
    "entityType": "User",
    "nonce": "0xd6eee2bda924e5d9f6e8c0862c9df3a89d2ab0f9ce6ff73d9372f3d82a1b202b",
    "signature": "0xb26b911dd6cfa73137dec81f0c63171ca1b3ddb84aaadc9b3ee5a1a2f14a23bb376815056c9ac807466fa7e432ac01153507c7c251aac0dd24257a479d58d7471c",
    "signer": "0xF1CE68Bb55af8179258987F2f915291419370CFd",
    "userId": "216389377"
  }
}