{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164789",
    "entityType": "User",
    "nonce": "0x24601006241e243b9abd5e22c1536c7adce25f720e61882103d9119247957adb",
    "signature": "0xddf99bddcc69fceb9841d1b0b08a0a65982998ef95b0ea20d8ecfc191354d8c679bf42cb52cb6ce0148bc5765711ad10d89fe250bfce60992a9c97c88762bbe11b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}