{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x700bae23589e3dae91e3471f657a4e2d4659673387640b98bcd719181a9176b1",
    "signature": "0x54fa73ff5653715130cbb0949f77ff24316a0b7cff652c20ddbc76438dae65a1267844ef11e4be921175061160baaa0d1d26532413e487ca902c808d03e0aa571c",
    "signer": "0x2DC747315DFdf8CAE28dC99be02Ff6c226E76151",
    "userId": "869680389"
  }
}