{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71508",
    "entityType": "User",
    "nonce": "0x3de0e66e496e173e38f88cc92b0283e723e56fce4ecf8affa8e555ac3db365d1",
    "signature": "0xbc08e20a06de861262b4d1b9ab2bf3bc3a20d150e66e2d0085329a8dc33c95537ac4371ba1e96088a12bb47add70ed1aa1f2150fbd03b33d1814d58321618dae1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}