{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xab4524b3cc63c9b0e43a6993896077d27e818ad20f6f0b5ba78fe29e255aa3b1",
    "signature": "0x665a8adaff075f927447dbc59872c0f60d54e8513a7420b15a6428f232572cbc6944c97fe628a1657dd635f86e798c9ec1a012592891096fb569c120169c9c351b",
    "signer": "0x03BB894E7BF8807c3280FF09490241E9e1Ab2e56",
    "userId": "53983628"
  }
}