{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370826",
    "entityType": "User",
    "nonce": "0x1ef1f120586f0aaefeea3d498cd407cf810d3c6fde8856392e6db1759d96b830",
    "signature": "0xe3c0f272cc0064b10f3935427555f336d6c0480d17289c619aead3d52fa8a2d27738a094f28d29ee0e4ba1f53fb930990fc4528742c58ffe0f66e1737023a1401c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}