{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "62731",
    "entityType": "User",
    "nonce": "0x51c3eb35fccc4f0ba038ae5d5a8931d794cc6594c3d5b306c379f2b1a1f2b7a4",
    "signature": "0x6a03548ce6b1c001daeab429cf5fd651417f33ab29f51e7653f2dc5b046f1d4c3a052dd786932e8e9be4dd9fc58e04344cf8d97baf217e804bdd5934f91dd8061c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}