{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152232",
    "entityType": "User",
    "nonce": "0xecfc4ecb8c70e7b089135389f77bc04332dcbf15f3e4f7821df37b296960bce2",
    "signature": "0xb694734638f84cfd13d732ada4a94806a21a187a0313227979e3e9a24d8a3fae3de6cda17461295a45f40106655f7d9f6f261706e823357c98189b34c98aa6d01b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}