{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7c5aa2afecb0181813861291be53911cc547b92e8001f48b2f313cad20c6810f",
    "signature": "0xaceca86599371c45cbaf2e1ed426378f47a1ddb0afeca1ad46dee26afbe570dc644294306963655919fd23b00e3d04599649ee85a6e81e421070b3f404d45bb81c",
    "signer": "0x6BfD4032A6D707850023a64C2e983743D90C2Df9",
    "userId": "223931932"
  }
}