{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "823590972",
    "entityType": "User",
    "nonce": "0x94025ccc637245565be388d51cb0dab54eef7ed7ad025aaf6329e42c0efb531f",
    "signature": "0x4afd6eb54cc697b9f8f348eb1bbfdc3062ead002fa943910a290d5fd06c317d95b5be822c9e1bdf50b16d30f047194052a8b206316f295dac4ccced27a1698681c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}