{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "741439905",
    "entityType": "User",
    "nonce": "0x28fe759d5e0501912157919559474168622c2f14540986f24c71d07ae78e20ab",
    "signature": "0xfceda7c0bfd90fc87b33fe57050c84e18c853ab1ef19fe62060991d98515fc3b04e32915e4d094ad011de7dcd4b235895b6ced0ec233d4f7ea47f9a325fe8ae81b",
    "signer": "0x019c1Ea6f901A4f7AeAa1daD2842a34Fdf9A9FB2",
    "userId": "798348033"
  }
}