{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "601282125",
    "entityType": "User",
    "nonce": "0x0958373e50b507b35da238f6de9566a67980b404b768bc38671cf5eba031dd1c",
    "signature": "0xe1ae0c4ab69b1a627bcbdb199befbf296eb5d60e6303e1157d266f0a1cbbe99714fdfa59fbd64ae1d3958293ed1ea6fd1434562d784c786d0ba0f978c69486481c",
    "signer": "0x4fADC28D15fC4B42A6ab378E5b6155d0b8F33aaA",
    "userId": "372589391"
  }
}