{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x7999233d9d7d6fc638d164262f2c160ff6dc2792a6587a37329918ffa0c888fb",
    "signature": "0x4dbac0ef110b33150d54a4ae2ace6f50050e14374c1490eff4190f5900fdf08543dd116b1c23998be773b25995561bac7f2ebffe6f89c62d3adf95e6a0b827e31c",
    "signer": "0x4B03B9450DcE329d16f317309777a1ddDF894705",
    "userId": "74596186"
  }
}