{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xc589a4c8252d1bd8aff0371d40a409a1033f7c72b609482cf7394711833e5cee",
    "signature": "0xd4e20d3249784f441956fc06efe50cc78b489f1923c4313b6410a3046916afbc10c7a271c6492f3b980fc8d373db9fb5eb9060e485733399ae1ee6ab9631d3d01c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}