{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcd3e48ce2d2a5e01accd88779f2e4eeef81f890cf7ca682e543928fa242f98cd",
    "signature": "0x97d76b9b099612265921bb0455d70381ee964eea9822d38ffe8851dae2e7ab3615a2aec5d9c47c4f87a7a96d309d35dcbdef289badca71c3c5d86389de936ccf1c",
    "signer": "0x8fC311242F8bABA107e153Fa6BDc59e412be7A61",
    "userId": "257893262"
  }
}