{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "722914520",
    "entityType": "User",
    "nonce": "0xba15ee7bae0c6597534b2212d84abeea53c94972798c621b797272c872203de7",
    "signature": "0x3a962214c5f24340a512275ec13a10f61e03db474da7764a7dfe2f2e6687616f00d4920088b270de8d83bff9afb99824e00c4923890135dffa0a1352e153c5cd1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}