{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406225571",
    "entityType": "User",
    "nonce": "0x7b5b3de8a0a3321deaae7df4274e983049724d6435dff3b669201202e757041f",
    "signature": "0xcfe114526b59035599a6921c337b4cb9d33e52e9f1ab3b134cae36ab128b164d060b6c14ca7df69400e6969e6d4b480fce6cf87dde6b9d8908660a1c766f5a971b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}