{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57439",
    "entityType": "User",
    "nonce": "0x73d022db279141765a2811206a206964b98edbe1e603e39d78a9e204f0c61d44",
    "signature": "0x3f6284305ba7147f094f2e34394c7c226e4a79971415c3928cc24727fe81b79372b870d8c92c7aedd24fcfea73330d280e5bbb580045a204b8d19c004ea463001b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}