{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17338",
    "entityType": "User",
    "nonce": "0xdb90b064ecd70a14cf95b1768aad83f60e92328fcb3f7ff8e953cff0a6668266",
    "signature": "0xa2616556c603d365ac1b5d6c3b65d78db7d547a40bef213de30122f7c02b91ac293e67489509504d69355511724669d858857720acc2ffc071c006fd142037c91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}