{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8690db18dd7919c10648785e43ae9731d9187af8e0d0b06a6d001878bbb2e2bb",
    "signature": "0x6cfac9e38a6978d6b59e438c84fe044602deceba730638d8ec5fc9a2d6077bb47a6262af0d0dd56d84a6a09bf2b6558fd31ddec8f5d1fb6eca6ca7117c4c77cc1b",
    "signer": "0x61AC83c88663678EFA3C3a381aAc1A9F1aBD7B29",
    "userId": "61558552"
  }
}