{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6724",
    "entityType": "User",
    "nonce": "0x9cd7189b4308943fdeada028f6246ae167b941bb614857e8be4ae3fedea225f8",
    "signature": "0xb7df4ba78199b5c4c55e08e17674fb9c09a0bc6037e0945ea89ad5ca93759bce6d79c86643751552dde04d958adf1866bd2a222c04e65bef1200cdf0b10332271b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}