{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937107046",
    "entityType": "User",
    "nonce": "0xc8755e153943b414c7b02e0a1c38887423e5b314ddeb7ddb6e3ed845e688aa78",
    "signature": "0x2bb0f4ec95825cdcad2b6de69566bd87f1cc3200306ca7d0111c44ac0f14efba17f64c8d791b0bc3c3e1ef568c8e7f1fa00d513c20d8b153ffd44bfbe3adbbc61b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}