{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xf489b026bd28c353a0eac01c9883865a9dce214fbbb711f4a6801c5689a2b2b8",
    "signature": "0x5dfd78e067e7fc5d67e4a62b0e6e06bc907edf13ef005fae12221891f885617b1d3299a943a34a707f4bd1ee057bc9d3e688dda1cc2d4d4bae6b4c4fa28d93791c",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}