{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61539",
    "entityType": "User",
    "nonce": "0x578815087520229962b0c07b50e51acb23e0bedb76b07e8228bf8daac8e9b7d2",
    "signature": "0x15706e03e37ddc0142b90228d129040afc3ac0d40901d81784fdcb99408b446d77bbc423301b67d84369814a430e56e7b2b97312444b487cc99b6389619fa44d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}