{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x416af3e5bdb4957596214e641f54d2519dc246de16ff9a8978758a97119a1da0",
    "signature": "0x5a5f9167aa5162e0152ee7c821eea3d0c79fe6e77730ad318acc86ba7cef9d5a614c90a534984d2488abd058991758f2adb25cb7a790b7c0a369aa4bc09e351d1c",
    "signer": "0x92f4032Ca1B6917614552f8Add356b45B30b75bF",
    "userId": "890891313"
  }
}