{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123273",
    "entityType": "User",
    "nonce": "0x0bf36e8b4bd0684d2b4a91813e496295b33921e7259ff65986088186c83f0dab",
    "signature": "0x5c3bbe2b7a2555165e2995041f05a5577a9ecfa487c9723cd2a58471d452173d41aeda2355061b7a81ce3b785eec6b502878226a5b030c5a9f39bd0472fb328f1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}