{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7efd3002746e16a687d4d0a7b4ce578c68d2417b1bc902bfa70c0d539a79c9fa",
    "signature": "0x52fdd21907f3e72b3ab016726c0bcc02421d1c0ac9d3b15db0d2f2a7c504a9186b3246d9330a6d1810096bffab3134aa7190a5222c70ebbf43529d306cc41ac11b",
    "signer": "0xDFbB7dd2B54113B48Bdc36072271502bF4BFF1F8",
    "userId": "638771783"
  }
}