{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd6124b556aec7772e9324b88e6e72d9a4fcc9dbef00edff4ffde73cbc15d8ea6",
    "signature": "0x03c6877440b861512ef853f4e2ab6f4df72e9b5ee7d398af4d585a8e0a35fd0b10b25d3f4ac6d97c7c9dfcd6758a9a4ceab701e090118d920d87566bb192b6721b",
    "signer": "0x60824E42B28a3C9D7A9eB6A6feFC1cfB7B41F7C2",
    "userId": "914462657"
  }
}