{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5643da745ee284ac2c91c284755b8b252c738027633671ecef490640b307193f",
    "signature": "0x0794096cd6fd0e1d1a75d6506da4c37ad60967059695225596a5352323ac030b3e673a99a8969817e810f318d1bd676d3ba9f35d3bb6937a2de864c9a2ff8ee01b",
    "signer": "0x3cDab860Bfcc02BCDaa4624eA5C324B5e5D9f7A5",
    "userId": "370554049"
  }
}