{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65291",
    "entityType": "User",
    "nonce": "0xf6bca1b71b4634e13621e4c470b4dabe18d3e52ecd4e1f6a59d87c2bb17005c7",
    "signature": "0x7b30c055af8491b3e8d378a8fcb201fa4f1a04d5e4adb4dac9d80ce7b110c17e1e20a4300e9c1a7d2f298fb51fefa285b6d8a4db814fed7826017c82e0dbb5601b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}