{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6301",
    "entityType": "User",
    "nonce": "0x22a2d8d7d8edc04857b48330f027e83198cb7df61a4bdd2b716e1598b83d6f99",
    "signature": "0x80bfc6bacb5d59d5f33dea34560ce17bb6e89582fd015b8cdae3e1046255cd6e3c747ef458a58ce81189d0150a88b6776e476ba05d54ee6ee810175ed5678dd71b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}