{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "279896200",
    "entityType": "User",
    "nonce": "0x109a32a7fead64318ffe18f85e7bbd31976f652a8c514fe58c2839a6f47eb961",
    "signature": "0x00ab28a34f4ce16ff41fcf63522be11dfb53e3af514bc4b772e9e5133bbe60490b0c2ed7c74ef65440312534b92300b2d6d397854fa36b488bfe1e289bc8bff51c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}