{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916107216",
    "entityType": "User",
    "nonce": "0xfdd9e9bd4a849f679073fa9cc183a3dcba7f7dda0e2b7bf86b7eda796a3d1662",
    "signature": "0xab4c064808ec13a1b86a27fa78a0333300f0d5abdddccbfca3f7fecfc16852de50acba609427a33c79341378f45e51dba642fbcade798d2083354dba13d861db1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}