{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332438",
    "entityType": "User",
    "nonce": "0xcd9ebb9f3dfe7abb75e9f188fe0537f0c7982c93f2b8bdd9dc3cf0af5dd0d69a",
    "signature": "0x8713f3b5e7b027f0445bf783092343a816ed3aae162405c78423ab2df40650d067d1fac9043f0dfb5867ecbd96105282be2497b33bf6b8a25f50052ae20e48031c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}