{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd77ad131e39412fa2924e2eadd292d75388ffdeda63de758521d70fa7665b0fb",
    "signature": "0x4f48dc894fa71e728942175e5cddf602a03e0c8f6084b4e24879caf5b075c62804925d8eaa180cc81859bbb93ee92486990510ea308fdf654096e08bfaec2a1e1c",
    "signer": "0x0A6CB80dD410547296a7c2262d3e7536654C7880",
    "userId": "644719910"
  }
}