{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51656",
    "entityType": "User",
    "nonce": "0x7a48c0a91886a2bee7f0c9631c2af57c1bee4e3c1ccc2caaeb20339c734bd599",
    "signature": "0x4e0b696214d4f634cb2f4eec72d2cf32b298f092d2e8bab2895d27e9ac2428467c4858bf64024fc4e4ecc464af146512154807cc8cf2223b89c3dbd2d226ea9f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}