{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103254",
    "entityType": "User",
    "nonce": "0x9d7b170499f388231dc9c7d8a1b1188e40fea35e9d2171fa72ea41c5a5b330c6",
    "signature": "0x4de07c0b339cea07e601c9a3803bb7c79f975fc07025b5ebd8b0db3fb681192c04488ec44761c80640b7c18d37e3958ad01bbe586744cb03de1e2f2e251dfae41c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}