{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "570115506",
    "entityType": "User",
    "nonce": "0x7c4bcacf822f54461eb7145c28eafb1d2a80e32e24def6029e4b4d05887d2033",
    "signature": "0x6e7c1e52830b589b7442a8f1e22f8b160ac45094fc000c20309022c57464b8e7190e99f13cce4da0e21a9a0a19a3fe8cfc42bc06bc12e9da09eb5092b46d827e1c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}