{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0cd528224e35eac1a8be46ecba1d3240165a381e1c3d23b1f676fe99742faa89",
    "signature": "0xe07baeaf8a645e9fc84f52bc01bbc4fc7da20b7a6521bee15feca59a49802d1216ad30e3617dd6a12313c4d1bd5fbc77612db8c23350aee75f102df6721b71541c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}