{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309369",
    "entityType": "User",
    "nonce": "0xa4e8208ed4b3756bf3a9ae755597c61ff159c0ff475bad9f87df9b0ab70c9f76",
    "signature": "0x929fa512ba74c858caad6a2ccd7afb3a54e5a4b5071699db2ef6fabf8a29dced6d34637dadd34020941865e2087db68d0de69568c175efde5b85d0fe4f7fcb281b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}