{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "207918",
    "entityType": "User",
    "nonce": "0x01c08db777d7a0cbaf282699ce0daa058cb6b1b02582d870c4020398485ea106",
    "signature": "0x088dd994a4d00a2d3873a82e47011a80d3e21decd59d47023ab6da81c2122c457a47e809455083c5276f8561dd39b8364543f6b96e8a3629e21417ef49701cbd1c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}