{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x12c2fcac0bb84b4684080bdffb0046d85f48ebd6cbd6362fe0f96a1cc6a0232c",
    "signature": "0x166f4950e35f6d08959ca2798f981ed6bc609854f475edfe7c344c631669b7286424e5e173bde216498d2715b4be2f2b7eedb211e8c45ebbcc827a19c3cd77881b",
    "signer": "0x8d299A5597Eb57eaDbaA0cf93b1AD64d0cf7BabD",
    "userId": "227334970"
  }
}