{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57937",
    "entityType": "User",
    "nonce": "0xaa7d64aa52803f1c332973a26699fda0571e5070d092146d6ec57601eb63584b",
    "signature": "0xaef2b3e5833f1e61f1339661b376f9b6c8293ce149e3db1409b91aea819c6e4b11fd34479e8c05234eaf2ed3cdde0ed026d22ad4f44bced6f1af66e72538a4d41c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}