{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "70812",
    "entityType": "User",
    "nonce": "0x2a78e980c31d2471ecea6f2ea32b40cf5863071386afe40e18eb174d5a5a3836",
    "signature": "0xf940ddfb177ed783c6f667c7dd4f3c75062b496c08261fef0f1ed05ffca54afb22d39e79cf048eeccf7734f04d26e07580ff6cd8112128d027c8dec3450ce7b21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}