{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1421026",
    "entityType": "User",
    "nonce": "0xa24129dc92a84f2e44afaf4e9090ab2f3af58fb5659b522d1eb3683b813add3b",
    "signature": "0x6883854d58dfc620f7975899f2c4eefa4ef735406bcff12349e4800bca5e8d62543cb35eaf7c1f7a365e87273a787154bccf106c7072545fcfeb3aaa9be680ea1b",
    "signer": "0xF1CE68Bb55af8179258987F2f915291419370CFd",
    "userId": "216389377"
  }
}