{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x6f0ab693ce89e19a6ea56ece833805b83caba5da057d975eca571c1d41e5b885",
    "signature": "0x97b52acfd2f05f7a3283265fe68b11b9157f6903ab0773155db2544ab898ddac45b57b032b138d4fc055ff1046be099ea377f4ad3ef89501003428ab9b8ce0d11b",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}