{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30942",
    "entityType": "User",
    "nonce": "0x6c9b6c3952b819454b0aa462bccbef4efb936a69a5f3b0a1313127ea8e67874e",
    "signature": "0x423f6b450d9423f621e4e4c1d058ea76f6313f5061e1a22616252f42d044fcbe4ceacc008b32b878c8af7cd14591cc37947971d6785b134a74800d00259170941c",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}