{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "972831602",
    "entityType": "User",
    "nonce": "0x1410c80ce294d9d87d1d9c41599a70f2703f1d7cd7162410e300b890fc2b2956",
    "signature": "0x8791e87f537f6359aee0dd2436366afb8d63e96921290746a2ddbb3853a07a1937eba05db91c6d8cd57759c828c0ab0195f2b997fa92e47e2854309c960d64931c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}