{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1968339",
    "entityType": "User",
    "nonce": "0xbabf577fe83cd7d9a035028afe73b53f668fd0fef2afd70f64e4753be45e545d",
    "signature": "0x561a83984763cb936cfb78636b66688b68edbec0970b5af3beee17b76b78bfd51916608aa7946421374f7c5f54f6e31f4f3683b561ca4ff46991983b028e888e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}