{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124515",
    "entityType": "User",
    "nonce": "0x3be7c423bd231d3180ed98850f5496fb3a0127f546def51c61f9668bb1a5ec3b",
    "signature": "0xf3de5777f86a44861271775c59b1473b244b6cbaecdb50e0666b5273464df0487eaf3f0c17e72b9ed6605d01d0389e5fa6ef85b2b8aa553f0afa212259acc1d21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}