{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1464601",
    "entityType": "User",
    "nonce": "0x5c988afa6c2b8a2183054dc50a457d661a26a06729fa27ebacd4a22d4cde6da6",
    "signature": "0xb88e807af38b89f6146fcf7f39af5627ce88ae6372893a43a783c9d90366c18951df4fff7d2f6f042b0ccbe361d96b08907de489e3c3c7a496997bd043646bae1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}