{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "264829471",
    "entityType": "User",
    "nonce": "0x63621c175ca3133893f5068e770bdc477a3ff1a4484002f5fb40db6e6b1609b8",
    "signature": "0xfd3ef157fffd4ee8d272aac0a73ba2d268e6386cbf6da04b95c2e8f2224fbe3252d158f5ee45230e1ebd3279d2ba4c0d556b6f107352c0cdc36f316bec8899f51b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}