{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128541",
    "entityType": "User",
    "nonce": "0x76f7b1b7126425c1b2c861d928951b54b5214402a9aaa54d601a0b3098619263",
    "signature": "0xf9173d300297befd0c12ece1988f52a1180ebe3bc2a74e24763a28f3e92860592bc75f1e6f9134aca2a2ee80c0aa4f43ac5e39f8f2551654adc0e7749da1f0711c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}