{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1863416",
    "entityType": "User",
    "nonce": "0x4e049ee81ed097af6810c5ee4fd915945c5e387c056033d153b2dd4a0158cdab",
    "signature": "0x69441b6dac562c1b8ef4ea8ce023a45887112e7fe23e1a421a75bce09bf54cb105a357778f5afdaaa10e95691742f0dbaacdbcc687e95fb416118b7e0a4e36c71c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}