{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108340",
    "entityType": "User",
    "nonce": "0xff674fa4adc6d432f0e46842103e310e28f51dce8d2cf2f9593a064b4e52126e",
    "signature": "0x7a14cc7c6caf405276fed5cea0b51f4803f06200b6681a241e9ad6eb304469d0146a459f6c6bde49977cd012c635d9eac3224b4bfe0a15332117902b4b9153321c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}